Data types

PROMICE automated weather station (AWS) data undergoes three main processing steps to reach a usable data standard. The output of each step forms an intermediary data version, which we label as sequential levels.

Level 0

Level 0 is raw, untouched data in one of three formats:

  • [X] Copied from CF card in the field (raw)

  • [X] Downloaded from logger box in the field as a Slim Table Memory (stm)

  • [X] Transmitted via satellite and decoded (tx)

Level 1

  • [X] Engineering units (e.g. current or volts) converted to physical units (e.g. temperature or wind speed)

  • [X] Invalid/bad/suspicious data flagged

  • [X] Multiple data files merged into one time series per station

Level 2

  • [X] Calibration using secondary sources (e.g. radiometric correction requires input of tilt sensor)

  • [X] Observation corrections applied

  • [X] Station position relative to sun calculated

Level 3

  • [X] Derived products calculated (e.g. sensible and latent heat flux)

  • [X] Data merged, patched, and filled into one product